Open Access. Powered by Scholars. Published by Universities.®

Experimental Analysis of Behavior Commons™

Open Access. Powered by Scholars. Published by Universities.®

Western Michigan University

Discipline
Keyword
Publication Year
Publication
Publication Type

Articles 31 - 60 of 410

Full-Text Articles in Experimental Analysis of Behavior

Increasing Vocalizations In Children With Autism, Nicholette Christodoulou Apr 2016

Increasing Vocalizations In Children With Autism, Nicholette Christodoulou

Honors Theses

This study focuses on increasing vocalizations for students with Autism spectrum disorder. A three-part intervention was used to attempt to establish an echoic repertoire in students who had little to no vocalizations. Both students attended an early intervention classroom with a special education school. Students were selected from their classroom if they showed little to no vocalization or echoic skills. The goal during the first phase was to collect all sounds being made by the student to increase the overall number of vocalizations being made. This was done by continuous reinforcement using edible reinforcers. In phase two, the student’s dominant …


Transitioning Children With Autism From A Discrete Trial Classroom To A Group Classroom, Alexandra Ennis Apr 2016

Transitioning Children With Autism From A Discrete Trial Classroom To A Group Classroom, Alexandra Ennis

Honors Theses

The goal of this project was to prepare children diagnosed with autism for the transition to group learning environments by teaching them to sit in their chair and attend while the teacher is at least five feet away. This is a skill that will help kids succeed when they make the transition from an early intervention program to a group learner environment because it allows the teacher to focus more on learning important skills. A proximity procedure was put in place for two children that focused on gradually increasing the distance between the tutor and the student with use of …


Evaluation Of The Discriminable Stimulus Effects Of 0.3 Mg/Kg 3, 4‑Methylenedioxypyrovalerone (Mdpv) And 1.0 Mg/Kg 4-Methylmethcathinone (4-Mmc) Using A Drug Discrimination Procedure In Male Sprague-Dawley Rats, Michael Berquist Apr 2016

Evaluation Of The Discriminable Stimulus Effects Of 0.3 Mg/Kg 3, 4‑Methylenedioxypyrovalerone (Mdpv) And 1.0 Mg/Kg 4-Methylmethcathinone (4-Mmc) Using A Drug Discrimination Procedure In Male Sprague-Dawley Rats, Michael Berquist

Research and Creative Activities Poster Day

Experimental investigations into the behavioral and neurochemical effects of illicit β-ketophenethylamines (synthetic cathinones, “bath salts”) has increased in recent years. Two cathinone derivatives in particular, MDPV and mephedrone (4-MMC), have received a considerable amount of research attention given their relative popularity among users at the turn of the 21st century. Researchers investigating MDPV and 4-MMC have devoted much of their attention toward evaluating the drugs’ reinforcing efficacy, rewarding effects, receptor binding profiles, and effects on ambulatory responses.

There exist few published studies that have evaluated the discriminable stimulus effects of MDPV and 4-MMC using rodent drug discrimination procedures. To date, …


Previous Exposure To Lsd Fails To Enhance The Psychomotor Stimulant Effects Of D-Amphetamine In Male Sprague-Dawley Rats, Keli Herr Apr 2016

Previous Exposure To Lsd Fails To Enhance The Psychomotor Stimulant Effects Of D-Amphetamine In Male Sprague-Dawley Rats, Keli Herr

Research and Creative Activities Poster Day

  • The hallucinogenic effects of lysergic acid diethylamide (LSD) have been largely attributed to its high affinity for 5-HT2A receptors. However, LSD also has a high affinity at several other monoamine receptors (Nichols, 2004; Passie et al., 2008).
  • The contribution of dopaminergic mechanisms to LSD’s behavioral effects have not been investigated to the same extent that serotonergic mechanism have been studied. Some authors have hypothesized that chronic treatment of rats with LSD may produce a persistent behavioral state characterized by sensitivity to dopamine agonists (Marona-Lewicka and Nichols, 2007).
  • Repeated exposure to psychostimulant drugs is known to produce progressive increases in locomotor …


Increasing Vocal Behavior And Establishing Echoic Stimulus Control In Children With Autism, Joseph Shane Apr 2016

Increasing Vocal Behavior And Establishing Echoic Stimulus Control In Children With Autism, Joseph Shane

Dissertations

Many children with autism fail to demonstrate vocal-verbal behavior, including echoic behavior, as early as their typically developing peers. Some also make very limited vocal sounds in general, remaining mostly mute aside from crying or engaging in stereotypy. Echoic behavior involves auditory discrimination and matching, and functions as a beneficial, if not necessary, prerequisite for many other vocal-verbal skills. The purpose of this study was to develop and implement an echoic training procedure for primarily non-vocal children who did not demonstrate auditory discrimination in baseline. The intervention consisted initially of sessions in which any vocal sounds were reinforced. Then differential …


Session-By-Session Feedback From Psychotherapy Outcome Assessment: An Analysis Of Treatment Utility, Lynn Hallberg Hall Apr 2016

Session-By-Session Feedback From Psychotherapy Outcome Assessment: An Analysis Of Treatment Utility, Lynn Hallberg Hall

Dissertations

This study sought to examine the effect of providing outcome assessment data to therapists treating a sample of community adults seeking mental health services at two university training clinics. The participants (N = 41) were predominantly unmarried, Caucasian females, 19 to 39 years old, with a wide range of psychological problems. The therapists were trainees from master’s and doctoral programs in counseling and clinical psychology participating in their first clinical practicums. The Outcome Questionnaire 45-2 (OQ), an instrument designed for frequent measurement of client symptom, interpersonal, and social-role distress, served as the dependent measure. The OQ was designed to show …


Examining The Effectiveness Of A Training Video On The Lmplementation And Lnterpretation Of A Functional Analysis, Alissa Anne Conway Apr 2016

Examining The Effectiveness Of A Training Video On The Lmplementation And Lnterpretation Of A Functional Analysis, Alissa Anne Conway

Masters Theses

Functional behavior assessment (FBA), and more specifically functional analysis (FA), refer to structured assessment processes designed to identify the controlling variables for challenging behaviors across children, adolescents, and adults. The results from a functional analysis are used to match therapy techniques to unique causal variables for challenging behaviors and also to select more adaptive replacement behaviors that produce similar functions as the challenging behaviors. As functional analysis techniques, in all variations, have become more commonplace in applied behavior analysis (ABA), attention has turned to how to train practitioners to implement FAs, interpret the results, and use the FAs to inform …


An Examination Of Several Variables Influencing The Efficacy Of The Gateway In Street Sign Configuration On Motorist Yielding Behavior, Miles Bennett Aug 2015

An Examination Of Several Variables Influencing The Efficacy Of The Gateway In Street Sign Configuration On Motorist Yielding Behavior, Miles Bennett

Dissertations

This study contains five different experiments that examine the effects of several variables influencing the effectiveness of the In-Street sign and various In-Street sign configurations. Experiment 1 and 2 compared the effects of the Gateway configuration using R1-6 signs to blank fluorescent yellow-green signs arranged in the Gateway configuration on motorist yielding to pedestrians in crosswalks. The results showed that the blank signs produced an increase in yielding from 7% to 33%, while the addition of the message and symbols to the sign increased yielding to 78%. Experiment 1, 2, and 4 examined the effects of different configurations of the …


Behavior Analysis Program To Improve Habits Of Physical Activity, Eating, And Sleeping, Ivan Noe Martinez Salazar Aug 2015

Behavior Analysis Program To Improve Habits Of Physical Activity, Eating, And Sleeping, Ivan Noe Martinez Salazar

Dissertations

An Internet-based five-week duration program to improve “health habits” using behavior analysis principles and eHealth technology was developed and evaluated. The “health habits” include recurring behaviors that impact health status such as eating, sleeping, and physical activity.

Ten adult participants were recruited online from Mexico. A multiple baseline design was used and participants were randomly assigned into two different groups (i.e., ABBAA and AABBA groups). Participants received online training using videos describing the characteristics of the program and its components. Each participant recorded selected health behaviors using a Microsoft Excel® tool designed specifically for this program’s goal achievements. Participants reported …


Phase Change Lines, Scale Breaks And Trend Lines Using Excel 2013Tm, Neil Deochand Aug 2015

Phase Change Lines, Scale Breaks And Trend Lines Using Excel 2013Tm, Neil Deochand

Masters Theses

The development of graphing skills for the behavior analyst is an ongoing process. Specialized graphing software is often expensive, not widely disseminated, and may require specific training. Dixon, et al. (2009) provided an updated task analysis (Carr & Burkholder, 1998) in the widely used platform Excel 2007. Vanselow and Bourret (2012) provided online tutorials outlining some alternate methods also using Office 2007. This article serves as an update to those task analyses with alternative and under-utilized methods in Excel 2013. To examine the utility of our recommendations twelve psychology graduate students were presented with the task analyses and the experimenters …


Saliva Cotinine As A Measure Of Abstinence In A Lottery-Based Contingency Management Treatment For Smoking Cessation, Catherine M. Gayman Aug 2015

Saliva Cotinine As A Measure Of Abstinence In A Lottery-Based Contingency Management Treatment For Smoking Cessation, Catherine M. Gayman

Dissertations

Contingency management decreases smoking by delivering monetary incentives contingent upon objective verification of abstinence. The present study investigated the effectiveness of monitoring saliva cotinine twice weekly in a contingency-management treatment for cigarette smoking using a cash prize-based payment system. Participants were randomly assigned to either a contingent reinforcement group or a non-contingent reinforcement group. The study began with five consecutive Baseline days during which participants smoked as usual, and was followed by four consecutive Shaping days, during which participants were asked to gradually decrease smoking. During the subsequent three-week Abstinence phase, participants submitted saliva cotinine and breath carbon monoxide samples …


Differential Effects Of Methylenedioxypyrovalerone (Mdpv) And Mephedrone In Rats Trained To Discriminate Mdma Or A D-Amphetamine+Mdma Mixture, Eric Louis Harvey Jun 2015

Differential Effects Of Methylenedioxypyrovalerone (Mdpv) And Mephedrone In Rats Trained To Discriminate Mdma Or A D-Amphetamine+Mdma Mixture, Eric Louis Harvey

Masters Theses

Recent reports on the abuse of novel synthetic cathinone derivatives call attention to serious public health risks of these substances. In response to this concern, a growing body of preclinical research has characterized the psychopharmacology of these substances, particularly mephedrone (MEPH) or methylenedioxypyrovalerone (MDPV), noting their similarities to MDMA and cocaine. The present study employed drug discrimination methodology to assess the discriminative stimulus effects of MEPH and MDPV in male Sprague-Dawley rats trained to discriminate 1.5 mg/kg 3,4 methylenedioxymethamphetamine (MDMA) or a mixture of 1.5 mg/kg MDMA and 0.5 mg/kg d-amphetamine (MDMA+AMPH). After establishing dose response functions with each training …


Effects Of Altering Motivation In Pigeons Performing A Titrating-Delayed-Matching-To-Sample Task, Zachary J. Zimmermann Jun 2015

Effects Of Altering Motivation In Pigeons Performing A Titrating-Delayed-Matching-To-Sample Task, Zachary J. Zimmermann

Masters Theses

In order to better understand the role motivating operations (MOs) serve in preceding and evoking behavior, it is useful to examine the effects of whether manipulating motivation can influence performance on tasks with known behavioral outcomes. It is well established that altered stimulus control is responsible for changes in responding on tasks of generalization and discrimination. Therefore, if stimulus control could be influenced by MOs, then perhaps stimulus discriminations could be improved by manipulating the relevant MO. To this end, the effects of altering motivation via food deprivation were examined in pigeons using a titrating-delayed-matching-to-sample task. Additional pharmacological variables (i.e., …


The Neurobehavioral Consequences Of Gestational And Chronic Atrazine Exposure In Male And Female Sprague Dawley Rats, Jennifer L. Walters Dec 2014

The Neurobehavioral Consequences Of Gestational And Chronic Atrazine Exposure In Male And Female Sprague Dawley Rats, Jennifer L. Walters

Dissertations

The adverse health risks of exposure to the herbicide, atrazine, in humans are not fully understood. Although numerous studies have demonstrated atrazine to be an endocrine disrupter, the neurobehavioral consequences of atrazine exposure have not been thoroughly examined. The aim of this study was to investigate the effects of environmentally-relevant levels

of gestational followed by continued chronic atrazine exposure on motor function, learning and memory, anxiety, and striatal dopamine content in rodents. Pregnant Sprague Dawley rats were treated by gavage with 100 µg/kg atrazine (ATZ low), 10 me/kg atrazine (ATZ high), or vehicle on

gestational day l through postnatal day …


An Attempt To Establish Approval As A Learned Reinforcer, Kelly T. Kohler Dec 2014

An Attempt To Establish Approval As A Learned Reinforcer, Kelly T. Kohler

Dissertations

Approval does not function as a powerful reinforcer for many children with autism, making it difficult to reinforce appropriate behavior in a functional and consistent manner. The current study first assessed the effects of establishing approval (“Nice,” accompanied by a smile and nod) and nonsense words as discriminative stimuli, with the intent that they might also become learned reinforcers. We conducted several experiments to assess the effectiveness of approval as a reinforcer, including tests on learning new responses (receptive, expressive, freeoperant, and simple simultaneous discriminations) and tests on the performance of previously mastered responses (receptive and expressive responses). Despite the …


The Use Of Response Interruption Redirection, Timeout, And Differential Reinforoement To Decrease Stereotypy, Jessica Korneder Dec 2014

The Use Of Response Interruption Redirection, Timeout, And Differential Reinforoement To Decrease Stereotypy, Jessica Korneder

Dissertations

Behaviors such as toe walking, hand flapping, nonfunctional vocalizations, and rocking are all examples of stereotypy. Stereotypy can occur at high rates in children with and without developmental delays (Smith & Van Houten, 1996). These behaviors can interfere with the acquisition of new skills (e.g., Dunlap, Dyer, & Koegel, 1983; Morrison & Rosales-Ruiz, 1997) and social interactions (Jones, Wint, & Ellis, 1990). The purpose of this study was to assess the effectiveness of response interruption and redirection (RIRD), time-out, and differential reinforcement of other behavior (DRO) in reducing vocal and motor stereotypy with children who engage in automatically reinforced high-rates …


Evaluation Of Novel Κappa Opioid Agonists Alone And In Combination With D-Amphetamine On Locomotor Activity In Sprague-Dawley Rats Evaluation Of Novel Κappa Opioid Agonists Alone And In Combination With D-Amphetamine On Locomotor Activity In Sprague-Dawley Rats, Mary Melissa Peet Dec 2014

Evaluation Of Novel Κappa Opioid Agonists Alone And In Combination With D-Amphetamine On Locomotor Activity In Sprague-Dawley Rats Evaluation Of Novel Κappa Opioid Agonists Alone And In Combination With D-Amphetamine On Locomotor Activity In Sprague-Dawley Rats, Mary Melissa Peet

Dissertations

Stimulant abuse is a widespread problem that often leads to detrimental health and social consequences. Currently, there are no FDA-approved pharmacotherapies available as a treatment option for stimulant abuse or the prevention of relapse. Drugs targeting kappa opioid receptors (KOR) are under investigation as a potential pharmacotherapy. KOR agonists have been shown to modulate dopamine levels within brain reward pathways, thereby producing anti-addictive effects. Traditional KOR agonists unfortunately tend to produce untoward side effects, including sedation, limiting their therapeutic utility. Structurally different from traditional KOR agonists, salvinorin A (salvA) may produce less sedating effects while still exerting anti-addictive properties. SalvA …


The Effects Of Varying Duration Of Reinforcement On Novel Selection-Based Mands Versus Topgraphy-Based Mands, Nicholas S. Acker Aug 2014

The Effects Of Varying Duration Of Reinforcement On Novel Selection-Based Mands Versus Topgraphy-Based Mands, Nicholas S. Acker

Masters Theses

In recent years, researchers have evaluated individuals' preferences for different mand modalities and its effects on the acquisition of novel mands during functional con1munication training (i.e., FCT; e.g., Falcomata, Ringdahl, Christensen, & Boelter, 20 I 0). In many of these studies, the modality of responding that Michael ( 1985) classified as selection-based responding, is preferred by participants (e.g., Falcomata et al., 201 0). Wraikat, Sundberg, and Michael (1991) suggest that topography-based responses may be preferable for the acquisition of complex language. However, selection-based verbal responses may have faster acquisition in learning initial verbal operants (Charlop-Christy, Carpenter, Le, LeBlanc & Kellet, …


A Comparison Of Two Variations Of A Stimulus-Stimulus Pairing Procedure On Novel And Infrequent Vocalizations Of Children With Autism, Andrew J. Bulla Aug 2014

A Comparison Of Two Variations Of A Stimulus-Stimulus Pairing Procedure On Novel And Infrequent Vocalizations Of Children With Autism, Andrew J. Bulla

Masters Theses

Despite the growth in a behavioral technology for the treatment of autism, a small population of individuals with autism fails to develop functional language. One procedure used for inducing vocalizations in non-verbal children is a stimulus-stimulus pairing (SSP) procedure. In an SSP procedure a vocalization is paired with a reinforcer over a period of time to establish the vocalization as a learned reinforcer, and any utterance of the target vocalization is believed to be automatically reinforced thus increasing the frequency of the vocalization. Past research has yielded mixed results with the SSP procedure, and more research is warranted to identify …


The Effects Of Child Birth Order And Number Of Children On Mother’S Supervision Beliefs And Practices, Alyssa Schramm Apr 2014

The Effects Of Child Birth Order And Number Of Children On Mother’S Supervision Beliefs And Practices, Alyssa Schramm

Honors Theses

Objective: This study aimed to examine (1) whether mothers’ attitudes about supervision differ based on (a) the number of children in the home and (b) the birth order of the child; (2) whether mothers’ reported supervision levels differ based on: (a) the number of children in the home and (b) the birth order of the child; (3) whether children in families with more than one child sustain more injuries than children in families with fewer children. I expected to find that mothers had more lax attitudes for their younger children versus old, and were more lax for homes with more …


Behavioral Sensitization Following Concurrent Exposure To Mephedrone And D-Amphetamine In Female Mice, Michael D. Berquist Ii, M. Melissa Peet, Lisa Baker Apr 2014

Behavioral Sensitization Following Concurrent Exposure To Mephedrone And D-Amphetamine In Female Mice, Michael D. Berquist Ii, M. Melissa Peet, Lisa Baker

Research and Creative Activities Poster Day

Introduction

  • Mephedrone (4-methylmethcathinone) is an active constituent of the illicit designer drugs commonly known as “bath salts”. In recent years, the recreational use and abuse of mephedrone and related synthetic methcathinones have dramatically increased in popularity in the U.S. and U. K. (e.g., Dybdal-Hargreaves et al., 2013; Winstock et al., 2010).
  • Mephedrone consumption is associated with a number of adverse side effects such as palpitations, bruxism, agitation (Winstock et al., 2011; Wood et al., 2010; Dargan et al., 2010), paranoia, hallucinations, aggressive/violent behavior, excited delirium, and psychosis (Ross et al., 2012).
  • Mephedrone may facilitate deleterious effects of other drugs of …


Evaluation Of The Efficacy Of A Rat Agreement Based Reinforcement Procedure, Katherine B. Lalonde Dec 2013

Evaluation Of The Efficacy Of A Rat Agreement Based Reinforcement Procedure, Katherine B. Lalonde

Masters Theses

Since 2007, giant African pouched rats (Cricetomys gambianus) have been used successfullyfor detecting Tuberculosis (TB) positive patients.The rats are trained to detect TB-positive sputum samples through the use of operant conditioning techniques, in which an indicator response is rewarded with food. If the rats are to be used for first line screening of patients reinforcement could not be provided because the true status of the sample would be unknown. The present study evaluated the effects of a reinforcement-for-agreement procedure that could be used to reinforce indication responses when the true status of the sample is unknown. Four rats evaluated 100 …


Influences Of Tnt-Food Pairings On The Performance Of Mine Detection Rats In Early Training Stages, Timothy L. Edwards Dec 2013

Influences Of Tnt-Food Pairings On The Performance Of Mine Detection Rats In Early Training Stages, Timothy L. Edwards

Dissertations

Anti-Persoonsmijnen Ontmijnende Product Ontwikkeling (APOPO), a Belgian nongovernmental organization headquartered in Tanzania, trains giant African pouched rats (Cricetomys gambianus) to detect land mines and deploys the rats for operational use in countries afflicted with mines and explosive remnants of war. In the present study an evaluation of the influence of ongoing scent-food pairings on the performance of the rats in early mine detection training was conducted. Twenty young rats in APOPO’s mine detection rat program were divided into two groups and exposed to five daily stimulus-food pairing sessions each week. For the experimental group the stimulus was the …


Slope Of Change Through D-Cycloserine Facilitation Of Exposure Therapy In A Social Anxiety Population, Christina M. Sheerin Nov 2013

Slope Of Change Through D-Cycloserine Facilitation Of Exposure Therapy In A Social Anxiety Population, Christina M. Sheerin

Dissertations

The present study sought to add to a growing base of research investigating approaches that facilitate the therapeutic effects of exposure-based therapy for social anxiety disorders. In particular, the approach involves the use of medication adjuvants that work in conjunction with therapeutic learning. This work translates findings from preclinical work to further our understanding of the neurobiological mechanisms that impact extinction learning. Among others, a promising method has been found with the use of D-cycloserine (DCS), a partial NMDA receptor agonist. Evidence of its positive impact in preclinical work has led to its application to clinical populations who suffer from …


The Effects Of The Temporal Placement Of Feedback On Performance And Skill Acquisition Of A Medical Data Entry Task, Nathan Bechtel Oct 2013

The Effects Of The Temporal Placement Of Feedback On Performance And Skill Acquisition Of A Medical Data Entry Task, Nathan Bechtel

Masters Theses

This study was conducted in a laboratory, and compared the effects of the temporal placement of feedback on task performance and skill acquisition. Temporal placement offeedback refers to the timing offeedback delivery relative to performance. Two temporal placements were examined: feedback immediately after performance and feedback immediately prior toperformance. The experimental design utilized was a form of Latin square design that included a combination of one between-group and two within subjects factors. Participants were randomly assigned to one of three groups, which differed only in the phase order utilized. Participants performed a data entry task intended to replicate thejob of …


Sharing: Social Behavior In Situations Of Risk, Stephanie Theresia Stilling Aug 2013

Sharing: Social Behavior In Situations Of Risk, Stephanie Theresia Stilling

Dissertations

The present study will experimentally investigate human cooperation (sharing) in a laboratory foraging task that simulates environmental variability and resource scarcity (shortfall risk). Specifically, it investigates whether a risk-reduction model of sharing developed by evolutionary biologists (derived from a risk-sensitive optimization model known as the energy-budget rule) could predict human cooperative behavior. Participants respond to earn points exchangeable for money when point gains were unpredictable. Failures to acquire sufficient points result in a loss of accumulated earnings (a shortfall). Participants are given the choice between working alone or working with others. The difficulty of meeting the earnings requirement is manipulated …


Assessing The Generality Of A Bout Analysis In The Description Of Operant Behavior, J. Adam Bennett Aug 2013

Assessing The Generality Of A Bout Analysis In The Description Of Operant Behavior, J. Adam Bennett

Dissertations

Operant psychologists typically use response rate as a primary measure of behavior. Although response rate has proven a useful dependent measure resulting in the identification of many important behavioral regularities, many researchers have argued that the measure has significant limitations. Primarily, response rate treats all responses in the measured response class as functionally equivalent and distributed uniformly across time. This conceptualization of behavior is useful as long as all responses are affected similarly by different experimental manipulations. Research has shown, however, that certain manipulations differentially affect responses with relatively short or long interresponse times. This has led to a new …


Motivating Operations In Drug-Discrimination, Amin Duff Lotfizadeh Jun 2013

Motivating Operations In Drug-Discrimination, Amin Duff Lotfizadeh

Dissertations

Motivating operations (MO) play an important role in learning and performance. According to the behavior analytic conceptualization, MOs alter the probability of responses that lead to relevant reinforcers and alter the reinforcing “value” of those reinforcers (e.g., Michael, 1982, 1993). Recent research suggests that one way in which MOs influence stimulus control is by influencing the control of behavior by discriminative stimuli. Interestingly, in studies with nonhumans, such an effect is commonly observed when lights and tones are used as discriminative stimuli, but not when drugs are used. Procedural differences across studies involving the species studied, the measurement system used …


Using Behavioral Interventions Amongst Unionized Workers To Increase Attendance, Marlies Hagge Apr 2013

Using Behavioral Interventions Amongst Unionized Workers To Increase Attendance, Marlies Hagge

Masters Theses

Employees’ attendance is fundamentally relevant for running a successful business. However, in many companies absences far exceed the national average of about 3% and pose a significant problem to the company’s overall success. This study compares the effectiveness of different low-cost behavioral interventions in order to increase attendance and specifically decrease the amount of avoidable absences from 6.3% overall absenteeism during baseline. Participants include 45 unionized custodians in 6 groups at a large Midwestern university. Interventions were introduced for 4 of the groups while the remaining 2 groups served as a control. Treatments evaluated include public recognition for perfect attendance, …


The Effects Of Yellow Rectangular Rapid-Flashing Beacons (Rrfbs) Onmotorists' Yielding, Exit Lane Encroachment And Conflicts At Fire Station Exits, Erick K. Marmolejo Jan 2011

The Effects Of Yellow Rectangular Rapid-Flashing Beacons (Rrfbs) Onmotorists' Yielding, Exit Lane Encroachment And Conflicts At Fire Station Exits, Erick K. Marmolejo

Dissertations

The purpose of the current study was to explore the extent to which yellow rectangular rapid-flashing beacons (RRFBs) affected motorists' yielding, exit-lane encroachment and conflicts at fire station exits. This study explored the use of RRFBs attached to sign prompts that alerted motorists to the presence of exiting emergency vehicles. These signs were activated only during an exit event. It was hypothesized that motorists would increase their frequency of safe and legal yielding in the presence of the RRFB intervention when compared to the absence of contextually activated RRFB units. This study was conducted in a midwestern town in front …